Refer to the following table of Ksp values to answer the question below.
Compound
PbS
SnS
ZnS
HgS
Ksp
3 x 10-29
1 x 10-26
2x 10-25
1.6 x 10-52
A solution has 0.01 M Pb²+, 0.01 M Sn²+, 0.01 M Zn²+, and 0.01 M Hg2+. As tiny amounts of sulfide ion are slowly added
to the solution, which compound will precipitate first?
PbS
O Fes
HgS
SnS

Answers

Answer 1

HgS will precipitate first when tiny amounts of sulfide ion are slowly added to the solution.

What is Ksp?

The solubility product constant, Ksp​, is the equilibrium constant for a solid substance dissolving in an aqueous solution. It represents the level at which a solute dissolves in solution.

If Solubility product is greater than the ionic product then no precipitate will form on adding more solute because unsaturated solution is formed.

If Solubility product is lower than the ionic product then excess solute will precipitate out because of the formation of super saturated solution.

Here, Ksp value of HgS is very low. Hence, HgS will precipitate first when tiny amounts of sulfide ion are slowly added to the solution.

Learn more about Ksp here:

https://brainly.com/question/4637627

#SPJ1


Related Questions

What hazard symbol does alcohol have? Why?

Answers

Answer:

Alcohol has considerable toxic effects on the digestive- and cardiovascular systems. Alcoholic beverages are classified as carcinogenic by the International Agency for Research on Cancer and increase the risk of several cancer types.

Explanation:

please mark me brainlist

Alcohol has a fire hazard symbol because it is extremely flammable and can create fires. Too be specific, ethanol alcohol is the flammable substance.

7. What produces more severe burns, boiling water or steam?​

Answers

Answer:

boiling water

Explanation:

boiling water produces more severe burns

7.71 Classify each of the following as exothermic or endothermic:
a. CHÂ(g) + 2O₂(g) —^> CO₂(g) + 2H₂O(g) + 802 kJ
b. Ca(OH)₂(s) + 65.3 kJ →→→ CaO(s) + H₂O(l)
c. 2Al(s) + Fe₂O3(s) — Al₂O3(s) + 2Fe(s) + 850 kJ

Answers

A. Heat is released, so the reaction is exothermic.

B. Heat is absorbed, so the reaction is endothermic.

C. Heat is released, so the reaction is exothermic.

The temperature of a 0.85kg block of copper was found to be 21 degrees the copper was placed in the sun and temperature increased to 28 degrees.Assume the specific heat of copper to be 0.385J/g degrees and determine the amount of heat absorbed by the block of copper.

Answers

Answer:

2290 . 75   J  absorbed

Explanation:

The copper changed from 21 to 28 degrees= 7 degrees

.85 kg = 850 gm

850 gm * 7 degrees * .385 J / g-degree) = 2290.75 j

Help please!

A new element with atomic number 116 was discovered in 2000. In 2012 it was named livermorium, Lv. Although Lv is radioactive and short-lived, its chemical properties and reactivity should follow periodic trends.

a. Determine the electron configuration for the valence electrons of Lv in the ground state. (2 pts)

b. It has been suggested that Lv can form a 4+ ion. Identify what would be the electron configuration for the valence electrons for the Lv4+ ion? (1 point)

Answers

The electronic configuration of Lv element is [tex]5f^{14} 6d^{10} 7s^2 7p^4[/tex].

The electronic configuration of [tex]Lv^{+4}[/tex] is [tex]5f^{14} 6d^{10} 7s^2[/tex] .

What is electronic configuration?

Electronic configuration, also called electronic structure, is the arrangement of electrons in energy levels around an atomic nucleus.

And also the possible union with hydrogen can give two possible compounds:

[tex]LvH_2 \;or LvH_4[/tex]

This is because the Livermorio compound can have two different oxidation states with the values 2 and 4. When reacting with the hydrogen that its charge is +1, these would be the two possible equations of a client to the different oxidation states with the ones that might react Lv.

It is a synthetic chemical compound and its number in the periodic table is 116.

Learn more about electronic configuration here:

https://brainly.com/question/13497372

#SPJ1

#1

Atomic no=116

Lies ahead of Renedium -86

Electronic configuration

[Rn]5f¹⁴6d¹⁰7s²7p⁴

#2

Lv^4+ means 4 electrons donated

So it gets removed from p orbital

[Rn]5f¹⁴6d¹⁰7s²

Type of chemical reaction of Ca(OH)2.

Answers

Answer:

Combination reaction

This reaction is a combination reaction because calcium oxide and water combine to create calcium hydroxide as the only result.

What is Ca(OH)2?

An inorganic substance called calcium hydroxide has several uses. It is also known as slaked lime, and limewater is the name of its aqueous solution.

Calcium hydroxide has the chemical formula Ca in both its composition and structure (OH)

2

and it has a 74.09 g/mol molar mass.

The calcium metal cation is linked to two hydroxide anions in this ionic molecule. Calcium hydroxide has a polymeric structure in its solid state, which is made possible by hydrogen bonds between the layers.

The mineral portlandite, a naturally occurring but seldom type of calcium hydroxide, is present in various volcanic and metamorphic rocks.

In order to make calcium hydroxide for use in industry, calcium oxide (lime or quicklime) is reacted with water.

CaO + H

2

O → Ca(OH)

2

On lesser scales, it may also be produced through the reaction of aqueous calcium chloride and sodium hydroxide.

Physical characteristics: It has a melting point of 580 °C and can be found as white powder or colorless crystals with a density of 2.21 g/cm3.

Chemical characteristics: Water may rather easily dissolve calcium hydroxide. It partly dissolves in water to create limewater, a moderately basic solution. Ca(OH)2 solution or limewater

salts when combined with acids, and it can corrode various metals, including aluminum. The process of carbonatation, which produces calcium carbonate from limewater and carbon dioxide, is advantageous:

Ca(OH)2+ CO2→ CaCO3+ H2O

Uses: Calcium hydroxide is used in a wide range of industrial processes, including the production of Kraft paper, water and sewage treatment, the production of ammonia, and pH adjustment. Additionally, it is a crucial component of mortars, cement, and plaster. It may be used in the food business for a variety of purposes, including pH correction, calcium fortification, digestion help, and baking soda replacement because it is a relatively non-toxic and gentle base.

Calcium hydroxide is not poisonous at low doses and poses no safety risks. However, inhaling, eating, or coming into touch with the aqueous calcium hydroxide solution at greater concentrations might result in lung damage, chemical burns, blindness, or serious skin irritation.

What kind of reaction is symbolized by AB + CD → AD + CB?
O A. Decomposition
OB. Synthesis
O C. Double replacement
OD. Single replacement

Answers

C. Double replacement

cations and anions switch places


The properties of an element depend on the electron structure within its atoms. The electrons are arranged in different
orbitals, at different energy levels and sublevels. Match each sublevel to the maximum number of electrons it can
accommodate?

Answers

The electrons are arranged in different orbitals, at different energy levels and sublevels.

What are Orbitals ?

An atomic orbital is a function describing the location and wave-like behavior of an electron in an atom.

This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus.

Following are the sublevel with the maximum number of electrons that can be accommodated by it ;

2 Electrons : S-Subshell
6 Electrons : P-Subshell
10 Electrons : d-Subshell
14 Electrons : f-Subshell

Therefore, S-Subshell has 2 electrons, P-subshell has 3 electrons, d-subshell has 10 electrons and f-subshell has 14 electrons.

Learn more about Subshells here ,

https://brainly.com/question/19221869

#SPJ1

A corn plant has been genetically engineered. It produces pollen that can make its own toxins. These toxins protect the corn plant against pests. What is a likely impact on the environment around the corn plant?

Bird and butterfly populations around the area may increase.
The concentration of pesticides in a nearby lake would increase.
Newer strains of pesticide-resistant pests may develop.
The carbon dioxide level would increase in the area.

Answers

Answer:

I think the answer is "newer strains of pesticide - resistant pests may develop" as I learnt in Biology, but I'm not sure as I don't know anything about corn plants.

Explanation:

Answer:

newer strains of pesticide

Explanation:

Describe the characteristics that identify a sample of matter as being a substance.

Answers

No matter how big or little a material is, its properties remain the same. Size, form, color, and mass are the qualities that distinguish a material from non-substances. All of these qualities, including size, shape, color, and mass, can be seen and measured. Some characteristics are physical, while others are chemical. Physical characteristics include mass, volume, density, and color.  Viscosity and solubility are examples of chemical qualities.

How many moles of nitrogen gas would be produced if 4.92 moles of copper(II) oxide were reacted with excess ammonia in the following chemical reaction? 2 NH₃(g) + 3 CuO (s) → 3 Cu(s) + N₂(g) + 3 H₂O(g)\

Answers

Answer:

4.92/3

Explanation:

ok????????????

Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Use the drop-
down menus to complete the statements.
The independent variable, the one that is intentionally manipulated, is
The dependent variable, the one that you measure the response in, is the pH of the solution
the physical properties
the system for measurement

Answers

Answer:

1) mass and type of material

2) type of material

3) temperature

Explanation:

Answer:

For Ed

Explanation:

The first one is: The physical proprieties.

The second one is: The pH of the solution.

I've been seeing the same answers from above around though, so I may be wrong. But either way, I tried.

How many grams of fluorine are needed to generate 7.65 moles Carbon Tetrafluoride

Answers

Answer:

36.3375 g

Explanation:

How many grams of glucose (C6H12O6) are contained in 555 mL of a 1.77 M glucose solution?

Answers

176.980176 g of glucose ([tex]C_6H_{12}O_6[/tex]) are contained in 555 mL of a 1.77 M glucose solution.

What are moles?

A mole is defined as 6.02214076 × [tex]10^{23}[/tex] of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

[tex]Molality = \frac{Moles \;solute}{Volume \;of \;solution \;in \;litre}[/tex]

[tex]1.77 M = \frac{Moles \;solute}{0.555 L}[/tex]

mole solute = 0.98235 g/mol

[tex]Moles = \frac{mass}{molar \;mass}[/tex]

[tex]0.98235 g/mol = \frac{mass}{180.16 g/mol}[/tex]

mass = 176.980176 g

Hence, 176.980176 g of glucose ([tex]C_6H_{12}O_6[/tex]) are contained in 555 mL of a 1.77 M glucose solution.

Learn more about moles here:

https://brainly.com/question/8455949

#SPJ1

Question 4 (3 points)

The mass of Jupiter is 1.90 x 1027 kg, and the mass of the Sun is 1.99 x 1030 kg. The average
distance between Jupiter and the Sun is 7.78 x 1011 m. What is the gravitational force they exert
on each other?

Answers

Answer:

=4.16×10^23Newton

Explanation:

By using formula,

F= GMm/d^2

Please help thanks in advance

Calculate the equilibrium constant K for the following reaction at 25°C from standard electrode potentials. Fe³(aq) + Cu(s) = Fe²(aq) + Cu²(aq)
The equation is not balanced. Use standard reduction electrode potentials.

Answers

The equilibrium constant K for the following reaction at 25°C from standard electrode potentials is Antilog (37.5).

What is chemical equilibrium?

Chemical equilibrium is the condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs.

Reduction Half-Reaction

[tex]Fe^{3+}[/tex](aq)+[tex]e^-[/tex] →[tex]Fe^{2+}[/tex](aq)

Standard reduction electrode potentials = +0.77

Oxidation Half-Reaction

Cu(s) = [tex]Cu^{+2}[/tex](aq) + 2[tex]e^-[/tex]

Standard reduction electrode potentials = -0.34

E° cell= E°cathode- E°anode

E° cell= +0.77+0.34

E° cell=1.11

E°cell= 0.0592÷n logK

From the redox reaction equations above, n=2

1.11 V= 0.0592÷2 logK

37.5 =  logK

K= Antilog (37.5)

Hence,  the equilibrium constant K for the following reaction at 25°C from standard electrode potentials is Antilog (37.5).

Learn more about chemical equilibrium here:

https://brainly.com/question/4289021

#SPJ1

• How did your experimental absolute zero value compare to the accepted value?

Answers

The experimental absolute zero value is less when compared to the accepted value of absolute zero.

What is absolute zero?

Absolute zero is defined as the temperature in which the lowest energy possible is attained in a thermodynamic system.

Absolute zero temperature has an accepted values of 0 Kelvin or -273.15 degrees Celsius.

At absolute zero, it is assumed that the volume of an ideal gas becomes zero. However, it has not been possible to cool any gas to absolute zero.

Based on the graph of temperature against volume of gases, the experimental absolute zero extrapolated from the graph where volume of the gases becomes zero is -285 degrees Celsius.

Therefore, the experimental absolute zero value is less when compared to the accepted value.

Learn more about absolute zero at: https://brainly.com/question/1191114

#SPJ1

Answer:

The experimental absolute zero value is less when compared to the accepted value of absolute zero.What is absolute zero?Absolute zero is defined as the temperature in which the lowest energy possible is attained in a thermodynamic system.Absolute zero temperature has an accepted values of 0 Kelvin or -273.15 degrees Celsius.At absolute zero, it is assumed that the volume of an ideal gas becomes zero. However, it has not been possible to cool any gas to absolute zero.Based on the graph of temperature against volume of gases, the experimental absolute zero extrapolated from the graph where volume of the gases becomes zero is -285 degrees Celsius.Therefore, the experimental absolute zero value is less when compared to the accepted value.

Explanation:

The velocity is ___ when the distance is kept the same and the time is halved

Answers

Answer:

Velocity = distance / time

if distance is same and time is 1/2

Velocity = distance / time/2

velocity = 2 (distance /time)

Velocity,= 2 * velocity

Velocity will be doubled

Complete combustion of 8.60 g of a hydrocarbon produced 26.5 g of CO2 and 12.2 g of H2O. What is the empirical formula for the hydrocarbon?

Answers

The empirical formula of the hydrocarbon is [tex]C_2H_3[/tex] if combustion of 8.60 g of a hydrocarbon produced 26.5 g of [tex]CO_2[/tex] and 12.2 g of [tex]H_2O[/tex].

What is an empirical formula?

A chemical formula showing the simplest ratio of elements in a compound rather than the total number of atoms in the molecule [tex]CH_2O[/tex] is the empirical formula for glucose.

1 mole of carbon dioxide contains a mass of 44 g, out of which 12 g are carbon.

Hence, in this case the mass of carbon in 8.46 g of [tex]CO_2[/tex]:

([tex]\frac{12}{44}[/tex]) × 8.46 = 2.3073 g

1 mole of water contains 18 g, out of which 2 g is hydrogen;

Therefore, 2.6 g of water contains;

([tex]\frac{2}{18}[/tex] × 2.6 = 0.2889 g of hydrogen.

Therefore, with the amount of carbon and hydrogen from the hydrocarbon, we can calculate the empirical formula.

We first calculate the number of moles of each,

Carbon = [tex]\frac{2.3073}{12}[/tex]  = 0.1923 moles

Hydrogen = [tex]\frac{0.2889}{1}[/tex]= 0.2889 moles

Then, we calculate the ratio of Carbon to hydrogen by dividing by the smallest number value;

            Carbon : Hydrogen

               [tex]\frac{0.1923}{0.1923}[/tex] : [tex]\frac{0.2889}{0.1923}[/tex]

                      1 :  1.5

                     (1 : 1.5) 2

                    = 2 : 3

Hence, the empirical formula of the hydrocarbon is [tex]C_2H_3[/tex].

Learn  more about the empirical formula here:

https://brainly.com/question/14044066

#SPJ1

Calculate the number of Pt atoms in the cube and find the radius in picometers of a Pt atom. Be sure your answer has the correct number of significant digits. Full questions are in pictures...Thank you!

Answers

V cube = 2.2³ = 10.648 cm³

V Pt atoms = 0.75(75%) x 10.648 = 7.986 cm³

Part 1

mass of a single Pt atom = 3.24 x 10⁻²² g

mass Pt atoms  = ρ x V = 21.45 g/cm³ x 7.986 cm³ = 171.3 g

the number of Pt atoms = 171.3 : 3.24 x 10⁻²² = 5.287 x 10²³

Part 2

4/3πr³=7.986 cm³

r = 1.24 cm = 1.24 x 10¹⁰ pm

In your own words, explain why a study published a cereal company that finds that breakfast is the most important meal of the day is likely to contain bias.

Answers

Because when your feeling down about waking up breakfast gives you energy and nutrients kind of wakes you up

What hazard symbol does cement have?

Answers

Answer:

The answer is in the picture.

What is the electron configuration of a sodium atom?
1s¹, 2s², 2p6, 356
1s¹, 2s2, 2p6, 3s¹
2s², 2s², 2p6, 3s¹
1s², 2s², 2p6, 3s¹

Answers

Answer:

1s²,2s²,2p6,3s¹.

Atomic no. of sodium is 11electronic configuration = 2,8,1.that Is 1s²,2s²,2p6,3s1.for electromic configuration - only 2 electron can be there in a single orbital there are 1 s orbital, 3 p orbital ...and so on.

If 142.5 g of liquid in the coffee-cup calorimeter rises 8.00 °C, how much heat is released by the neutralization reaction?

Answers

Q=mcΔt

Q=142.5 x 4.18 x 8

Q = 4.765 x 10³ J

Please help soon thanks

Answers

Hydrosphere & Geosphere hope this helps
A and C

describe how molecular motion and distance between molecules change as ice is heated to become a liquid and the gas

Answers

The conversion of heat to kinetic energy inside the water molecules causes the motion of the molecules to increase. The distance between molecules widens when the molecules move more quickly and clash more frequently. (As more heat is absorbed, the distance between molecules for solids, liquids, and gases widens)

How many grams of copper

Answers

The mas of copper is 217.3 grams.

what kind of investigations allow for the control of variables?

Answers

The experimental investigations allow for the control of variables.

What is control of variables?

The control of variables is the experimental element that remains constant and unchanged throughout the experiment of the investigation.

The control of variables is held constant during the experiment to test the relation between the dependent and independent variables.

Thus, An experimental investigation allows the control of variables all the time.

Learn more about the experimental investigation, then click here to visit;

https://brainly.com/question/11934994

#SPJ1

In what way does ocean water move globally?
A. Along warm-water currents from warmer regions to colder regions
B. Along cold-water currents from the equator to the Poles
C. Along cold-water currents from warmer regions to colder regions
D. Along longshore currents from the equator to the Poles.

Answers

Answer:

A. Along warm-water currents from warmer regions to colder regions

\

Explanation:

A because I did it already

Pb + 02 - Pb304 help

Answers

Answer:

6PbO +O2 --> 2Pb3O4

Explanation:

The question is incomplete I assume it is

PbO + 02 - Pb304

Other Questions
identify the reaction type predict the products and the balance in each of the following equations a. ___K3PO4 + ___ MgCl2 --> b. ___Fe + ___Na2CO3 --> c. ___CH4 + ___O2 --> d. ___H2 + ___Cl2 --> 3x+7-6=(8/7)-0Value of x? 25. Given: TE= RI, TI = RE,ProofLTDI and LROE are right /Prove: TD=RO Rpondez la question suivant ( vos avis), dans 2-3 phrases:"Pourquoi est-il important de maintenir une bonne sant mentale?" How do you think you might have reacted to Lincolns speech if you had been alive when he delivered it? 9. Solve for x: Please explain what is the difference between an sa and an sb galaxy? (select all that apply.) In Europe in 1650, what group held the most political power? What is a contraindication of Suxamethonium? Based on the root cata, what is the meaning of the word catalog?4OA. The study of burnsOB. A complete listingOC. Free from biasOD. One who destroys A boat moves with a velocity of 15m/s, N in a river which flows with a velocity of 8.0m/s, Calculate the boats resultant velocity with respect to North Based on your understanding of the scenario, why did the pharmacologist think that the experimental medicationwas effective?O The placebo was shown to be effective for the control group.O The toxicology of the medication was higher than expected.O The experimental group showed more improvement than the control group.O The placebo was given to the control group, but not the experimental group.Intro4Help Which claim from the speech best supports Warren's argumentthat the fight for pay inequality has begun?O"Here in the Senate, Sen. Barbara Mikulski (D-Md.)introduced the Paycheck Fairness ActO"But 40 years later, we're still debating equal pay forequal work"Pay inequality also means a tougher retirement forwomen.O"For middle-class families today, it usually takes twoincomes to get by, force of 5000N is acting on a body of mass 50kg if force of friction on the body is 100N. Calculate how long it takes for the body to gain the velocity of 50m/s from rest which statement is correct? HELP!!! LOTS OF POINTS AND I GIVE BRIANLEST NO FAKE ANSWERSGiven the following data for water:Heat of fusion = 334 J/gHeat of vaporization = 2,256 J/gSpecific heat of solid = 2.09 J/(g C)Specific heat of liquid = 4.184 J/(g C)Specific heat of gas = 1.84 J/(g C)Calculate how much energy is needed to change 50.0 grams of ice at 15.0 C to liquid water at 50.0 C. (3 points) a11,900 J b16,300 J c18,300 J d21,100 J Wendy and two friends went out to eat and decided they would split the bill. The total bill was 35.40. They also decided to leave a 20% tip. What is the price that each person paid? Action plans are used to Select one: a. identify and achieve goals. b. evaluate choices and make decisions. c. establish your values and beliefs. d. access valid and reliable health information The number of wrecks at a certain intersection varies directly as the number of cars that travel through the intersection. If there are 31 wrecks when 1,085 cars have traveled through the intersection, how many cars have passed through the intersection after 7 wrecks? 1. Identify the qualifications to become President and the typical characteristics of the US President2. Briefly explain the seven different roles of the President.